Calcite crystals

woodman driving up their electric bill If you cannot explain something in simple terms, you do not know enough about it. Member since December 2014 Posts: 2,710	Calcite crystals Aug 15, 2018 14:33:30 GMT -5 drocknut, Fossilman, and 4 more like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by woodman on Aug 15, 2018 14:33:30 GMT -5 Some calcite crystals I found last year in central Oregon. Not sure if I shared them or not, so here they are.

fernwood misunderstood rock expert Member since May 2016 Posts: 11,965	Calcite crystals Aug 15, 2018 15:44:31 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by fernwood on Aug 15, 2018 15:44:31 GMT -5 I love crystal specimens. Those are very nice.
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MsAli misunderstood rock expert Member since October 2017 Posts: 11,455	Calcite crystals Aug 15, 2018 15:49:36 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by MsAli on Aug 15, 2018 15:49:36 GMT -5 That is beautiful
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woodman driving up their electric bill If you cannot explain something in simple terms, you do not know enough about it. Member since December 2014 Posts: 2,710	Calcite crystals Aug 15, 2018 18:14:37 GMT -5 Fossilman likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by woodman on Aug 15, 2018 18:14:37 GMT -5 I cleaned them with vinegar and etched them to much. found then at the bottom of a piece of petrified wood stump.

goatgrinder
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Calcite crystals Aug 15, 2018 18:25:18 GMT -5 woodman likes this

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Post by goatgrinder on Aug 15, 2018 18:25:18 GMT -5

A shame about the etching but I don't know of another way to clean them well. I suppose that you left them in the vinegar too long. About how much vinegar did you use and how long did you let it soak? I have used vinegar on my Calcite clams in small doses and it didn't seem to do much. I did let some soak overnight and it etched the crystals like I see in your photo.

HankRocks
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Calcite crystals Aug 15, 2018 19:05:20 GMT -5 woodman and goatgrinder like this

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Post by HankRocks on Aug 15, 2018 19:05:20 GMT -5

I have never found a good way to clean any sort of mineral coating on Calcite. Any thing that removes the mineral will etch the Calcite.

Along the same vein, it is a bit annoying when you see Calcite that's been "finished" with Muratic being sold as natural. That slick, almost greasy/waxy feel is easy to spot. I have sold a few Terlingua specimens that I had clearly marked as Muratic washed.

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vegasjames no longer being taken for granite Member since June 2013 Posts: 9,579	Calcite crystals Aug 15, 2018 19:13:46 GMT -5 woodman likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by vegasjames on Aug 15, 2018 19:13:46 GMT -5 Great specimen.

fantastic5 driving up their electric bill Member since August 2011 Posts: 2,034	Calcite crystals Aug 15, 2018 21:09:26 GMT -5 via Tapatalk Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by fantastic5 on Aug 15, 2018 21:09:26 GMT -5 Beautiful!

Deleted
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Calcite crystals Aug 15, 2018 21:12:37 GMT -5

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Post by Deleted on Aug 15, 2018 21:12:37 GMT -5

Aug 15, 2018 19:05:20 GMT -5 HankRocks said:

I have never found a good way to clean any sort of mineral coating on Calcite. Any thing that removes the mineral will etch the Calcite.

Too true. The coating is often caliche, which of course is cemented together by calcium, or some other calcium-bearing mineral. Hot water might work if the coating isn't too stuck to the crystal surfaces, but who has the patience?

Last Edit: Aug 15, 2018 21:13:00 GMT -5 by Deleted

woodman driving up their electric bill If you cannot explain something in simple terms, you do not know enough about it. Member since December 2014 Posts: 2,710	Calcite crystals Aug 15, 2018 21:25:25 GMT -5 Fossilman and MsAli like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by woodman on Aug 15, 2018 21:25:25 GMT -5 This photo was before cleaning!

Fossilman
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Calcite crystals Aug 16, 2018 9:38:27 GMT -5

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Post by Fossilman on Aug 16, 2018 9:38:27 GMT -5

Nice piece.......It does take awhile to clean... I have one cleaned and working on another (Oregon found).. I like the ones I find in central Montana, they shine on their own..
As any mineral, rock and (or) fossil, they are fun to work with.... Thumbs up....As said, you scored a beauty Woodman!

Last Edit: Aug 16, 2018 9:39:08 GMT -5 by Fossilman

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